Controller - Danfoss AK-CC 750 series Manual

Controller

Function
There are several controllers in the series. The function is deter-
mined by the programmed software, but outwardly the control-
lers are identical – they all have the same connection possibilities:
11 analog inputs for sensors, pressure transmitters, voltage signals
and contact signals.
8 digital outputs, with 4 Solid state outputs and 4 relay outputs
Supply voltage
24 V a.c. or d.c. to be connected to the controller.
The 24 V must not be retransmitted and used by other control-
lers as it is not galvanically separated from inputs and outputs. In
other words, you must use a transformer for each controller. Class
II is required. The terminals must not be earthed.
The supply voltage to any extension modules is transmitted via
the plug on the right-hand side.
The size of the transformer is determined by the power require-
ment of the total number of modules.
The supply voltage to a pressure transmitter can be taken either
from the 5 V output or from the 12 V output depending on trans-
mitter type.
Data communication
If the controller is to be included in a system, communica-
tion must take place via the LON connection.
The installation has to be made as mentioned in the sepa-
rate instructions for LON communication.
Address setting
When the controller is connected to a system unit, the controller's
address must be set between 1 and 200.
Scan function
When the controller is connected to the data communication
cable the system unit must have knowledge of the new controller.
This is obtained by the scan function in the system unit. The LED
"Status" will flash fast when the system unit sends an acceptance
message.
Operation
The configuration operation of the controller must take place from
the software programme "Service Tool". The program must be
installed on a PC, and the PC must be connected to the controller
via the network plug on the front of the unit.
Light-emitting diodes
There are two rows with LED's. They mean:
Left row:
• Voltage supply to the controller
• Communication active with the bottom PC board (red = error)
• Status of outputs DO1 to DO8
Right row:
• Software status (slow flash = OK)
• Communication with Service Tool
• Communication on LON
• Alarm when LED flashes
- 3 LED's that are not used
• "Service Pin" switch has been activated
12 RS8GM222 © Danfoss 10-2014
TP 78
or
RS 485
Address
■ Power
■ Comm
■ DO1 ■ Status
■ DO2 ■ Service Tool
■ DO3 ■ LON
■ DO4 ■ Alarm
■ DO5
■ DO6
■ DO7
■ DO8 ■ Service Pin
Keep the safety
distance!
Low and high
voltage must not
be connected to
the same output
group
Slow flash = OK
Quick flash = answer from gateway
Installation in network
Constantly ON = error
Constantly OFF = error
Flash = active alarm/not cancelled
Constant ON = Active alarm/cancelled
(In 084Z0139 the alarm LED is moved
to position 5.)
AK-CC 750 - 080Z0130 & 080Z0139
PIN